The Cayenne has extraordinary precision steering. It feels like you can thread it through a needle's eye at pretty much any speed and it's very, very relaxing to drive. That said it does not communicate grip level as well as my M3 ( or an X5 ) I drive them back to back almost daily. It's pure physics and henrycao is right, when the steering is light all the time your'e left with a tighter range to fit variations. And yes, the Porsche steering is not numb, it's communicative in an almost weird way taken it's lightness but they still can't overcome the laws of nature.

Yeah...you're right...BMW's heavy steering is the way it should be and the true performance marques have it all go wrong.

You may prefer BMW's heavier steering but it does not in any objective way make it better.

I'm sure Ferrari is working on a way to make their steering heavier so it can be as good as BMW's.